Wrench.



1. CUNNINGHAM L H. FLOWERS.

WRENCH.

APPLIOATION FILED MAY 2s, 191s.

ATTORNEY fla/W n0 Z Z Z Patented Apr. '74

Gum/ng Hqywaod/J'jowers ,INVENTORS Ira/ fra

Wennen.

annesse,

Specication of Letters Patent.

Parenteel loro Application filed Mey 28, 1913. Serial Flo. 77am.,

To all 107mm, t may concern Be it known 'that we, IRA-CUNNINGHAM andll'AvWoon l FLOWERS, citizens of the United States, residing at GrandSaline, in the county of Van Zandt and State of Texas, llave inventedanew enduseful Wrench, of which the 'ollowin is a specification. j g Theinvention re. atcs to improvements in Wrenchesl 1 The object of thepresent invention is to improve the construction ofiwrenches, andtoprovide a simple, tively inexpensive Wrench ofstrong and durableconstruction, capable ofinstantaneous :initial or preli:ninaryVadjustment to fit any sized nut or other object Within its capacity, andcapable also of a quick iinal adjustment to engage the object operatedon firmly and secnrelv.

invention consists in the construction and novel combination of partshereinafter fully desoriloed,`illustrated in' the accompanyingdrawing,and pointed out in the claims hereto appended.; it losing understoodthat various changes in the form, proportion, size and minor details' ofconstruction, within the scope of the claims, may be resorted to Withoutdeparting from the spirit orsacrificing il@ any or `the advantages ofthe invention.

in the drawin g:-l1`igure l is a side elevation of a Wrench, constructedin accordance lar vievv,'talen at right angles to Fig. 2. sectional viewof the saine. Fig. 3 is a similll lar vien', taken at right angles toFig. 2. Fig". '4l a transverse sectional view on the line fl-L- oi Fig.l. Fig. 5 is a detail secional View of the sleeve. Figs. 6 and 7 aredetail views, illustrating the construction of 'l0 the couplil t;members for connecting the' rotary sleeve with the sliding jaw `and thesliding sleeve or casinge j Like numerals of reference designatecorresponding' parts in all the figures of the drawing ln theaccompanying drawingdn which'is illustrated the preferred embodiment ofthe invention, l designates a straight shank equipped at i ts outer ondwith a rigid jaw 2 and preferably ro/unded at the side'cdgcs, which arealso provided with teeth 3 formed loy cutting or rocessing thev sidoedges or :faces and shouldered at tlm outer ends and adapted to beengaged by opposite spring actuated nmvlefl, which lock a sliding,r jaw5 against inward :novo-ment on the shank. The

eflicient and comparaand llt-TrltliK t-liese and other objects in view,the

sliding jaw 5, which hase :dat engaging iace .to coperate with acorresponding engaging fa'ce of the rigid jaw 2, is provided with anopemng 6 to receive the'shanlr and has a hollow extension 7. The hollowextension or lower portion or" the sliding jaw is provided at oppositesides with corresponding inclined or angularly disposed edges 8, and hasopposite vertical shoulders 9 located the side edges of the shank andextending from the upper end of oneinolined' side edve 8 to the lowerend of the other inclined side edge 8. The inclined or angularly thesliding j aw are engaged by opposite cani edges l() of a rotarycylindrical adjusting sleevell, mounted on the shank between the slidingjaw and a sliding sleeve or casing l2 aving a bearin aga-inst therounded side edges or the shan at. The inclined upper or outer cam edgeslll of the adjusting sleeve 11 correspond to and are coextcnsive avis-lithe inclined or angularly disposed edge 8 of the sliding jaw, and the'is adapted to take-np the .liminary or initial adjustment of thewrench, is provided at the ends of the cam ,edges with verticalshoulders 13 engage the vertical shoulders 9 ing javv, which limits therotary movement of the sleeve 1n one direction. After a quiciradjustment of the sliding' jaw by the means hereinafter described, tieslack taire-np sleeve 11 is'adapted to be partially rotated to cause itscani edges to engage the sliding jaw and force the saine tightly againsta'. nut or other object opera ed on by tile Wrench. The outer face of tle sleeve is .preferably milled, as shown, or thervvise rougliened toenable it to be convemently grasped and rotated.

The lower or inner end edge 14 ofthe adjustingr sleeve is transverselyarranged in a plane at right angles to the shank, and it lits againstthe upper edge ot' thc sliolablo Asleeve or casing l2. which is alsostraight, as sliown. The slidable sleeve or casing which is providedwith an approximately cylindrical outer portion has its intermediatcportion enlarged to 'form interior recesses to receive engaging'no1-tions of pawls 16, 'pivotod by pins or rivets 17 in the intermediatoenlarged or laterally extended portions of tlwI sleeve or casing l2 andhaving outer operating arms lil, arrangedat an obtuse :molo to' theinner engaging arms and projeuting outwardly through openings 1.9 in

disposed edges of.

saldsieevc, WliicliV slack after a pre.

adapted to: of the slidthe laterally enlarged p ortions oithe slidingadjustin provided with interior sleeve or casin The inner engaging armsare each provi ed at 4their ends withv a pair of teeth 20 forsimultaneously en ging two of the side teeth of the shank. e ngagingarms or portions of the pawls are ur d toward the side edges of theshank by coiled springs 21, interposed between the opposite side facesof the upper portion of the sliding sleeve and the upper arms of thepaWls. The upper` or outei` operating arms are adapted to be readilygrasped and compressed between the thumb and one of the fingers of onehand, and when the engaging portions of the pawls are swung outwardlybeyond the straight yside edges of the shank, the ro tary sleeve and thesliding jaw are adapted t0 be moved readily in either direction toarrange the engaging portion of the sliding jaw the proper distance fromthe fixed jaw 2.

The sliding jaw is coupled to the slack sleeve by means of oppositelongitudin'a ly disposed coupling members 22, fitted flat against theside faces of the shank and provided with upper and lower lu s 23 and 24engaging respectively, the sliding jaw and the rotary sleeve. Thesliding jaw is provided with interior longitudinal grooves 25 to receivethe u `per or outer portions of the coupling members 22, and it hasopenings 26 at the outer ends of the grooves for the reception of theupper or outer lugs 23. The lower' or inner portions 27 of the couplingmembers are rounded and extend into the rotary sleeve and form bearingsat the opposite flat side faces of the shank for the said rotary sleeve.The rotary sleeve is inclined or spirally arranged groovcsfor ways 28,dis osed in parallelism with the com edges o the rotary sleeve andadapted to permit the adjustment of the rotary sleeve and thecorresponding inward or outward movement of the sliding jaw withoutaffecting thoconnection between the inner ends of the cou. pling members22 and the rotary sleeve. The y lugs 24 at the inner ends of thecoupling members are arranged at an an le or inclination to correspondwith that o the inclined or spirally arranged grooves of the rotarysleeve. The rotary sleeve is lilso coupled to the sliding sleeve orcasing by inner or lower coupling members 29, having terminal lugs 30and. 3l. The upper or outer lugs'BG of the coupling members 29 extendinto the loweror inner end of the rotary sleeve and engage oppositetransversely disposed grooves or ways 32 formed in the inner face of thesleeve ll.. The outer portions'of the cou ling members 29 are alsorounded at 83 to orm bearings for the lower portions of the rotarysleeve. The lov/er coupling inembers 29 are also arranged in grooves 34of the upper portion of the sliding sleeve Aor casing 12, which isprovided at the lower lmovement on the shank.

ends of the grooves 34' lwith `c'ipeninge 354 for the reception of thelower lugs 31. The coupling members swivel the rotary sleeve tothe'sliding jaw and to the sliding sleeve orploying oallpers for thispurpose.. The series i l of teeth terminate short of the inner end ofthe shank, which is: smooth to forma handle,

and the shank is preferably provided at its handle portion wlth a screw37, projecting slightly and adaptedto form a stop for re taining thesliding jaw and the rotary and sliding sleeves on the shank. Q

l. A wrench including a shan-lt having al fixed jaw, shank, a casingshdnble'on the shank and a sliding' jaw movable along the having asubstantially cylindrical outer por tion and provided with anintermediate 'om larged portion having openings, the inner and outer'portions of the easing 'being closed at the side edges, pawls mountedwithin the casin und having inner ends located within .t e inner portionthereofl und engaging the shank to lock the easing against inwardmovement, said pawls having operating portions extendingthrough theopenings of the intermediate portion of the casing, springs interposedbetween 4the projectingportions of the owls and. the outer portionof thecasing Ior holding the pawls normally in engagement 'with the shank, anda rotary sleeve svziveled to the cylindrical' portion of thelcasing andto the sliding jaw and. having acorn edge for engagin the" latter.

2. wrench including ashank having a fixed jaw, a sliding jaw mounted onthe shank and having interiorly arranged longitudinal grooves andprovided ai'. the outer ends thereof with openings, a rotary sleevemounted on cam edges'for actuating the sliding jaw, said sleevebeing'also provided withinclined or'4 angularly disposed grooves orways,l couplin members mounted in the longitudinal grooves of thesliding jaw and havingi outer terminal lugs to'engagethe openingsthereof `and* provided. at their inner ends. with lugs engaging in thegrooves lor lways of the rotary sleeve, and means for holding' therotary sleeve against inward.

.3. A wrench including y fixed jaw, a sliding jaw mounted on the 'andprovided transversely disposed. grooves or the'shank and having opposite.a shank having a .Y

.shank,a rotary sleeve having a, vcam-edge. lfor actuating theslidingjawwith no Cgi gaging in the said Loeaeea Ways, a casing slidable along theshank4 and having means for engaging the same, said casing being alsoprovided with interiorly arranged longitudinal grooves and havingopenings at the inner or lower ends thereof, and coupling membersarranged in the longitudinal grooves of the casing and provided wthterminal lugs-engaging the openings of the casing andthe transversegrooves or Ways of theslidin sleeve.

4, A' Wrench inclu ing a shank having a fixed jaw, a sliding jaw mountedon the shank, a rotary sleeve having'a cam edge for actuating thesliding jaw, said rotary sleeve being provided With interiorly arrangedinclined and transversely disposed grooves, coupling members carried bythe sliding jaw and the easing and having rounded portions extendinginto the rotary sleeve and provided with terminal lugs en rooves, andmeans carried by the easing or engaging the shank.

5o A Wrench inoluding-a shank having a fixed jaw, a sliding jaw mountedon the shank and having an interiorly arranged longitudinal groove,easing slidahle along the shank Vand provided with means for engagingthe same andhaving an interior-ly arranged longitudinal groove5 a rotarysleeve arranged on the said shank between the casing and the slidin iljaar and provided With a cam edge for aoruating the sliding jaw andhaving interior transversely disposed grooves, and interiorly arrangedlongitudinally disposed coupling members fitted inthe said grooves andprovided with means for engaging the jaw and the easing, said couplingmembers also extending into the rotary sleeve and provided 'with meansfor engaging the grooves thereof.

ln testimony, that we claim the oregoing as our own, We have heretoaiixed our signatures in the presence of two witnesses.

lite. CUlNlNGHAli/. llYi/VOU FLOWERS. lWitnesses:

JNO. T. Ceneri.,

S. N. Bnoiviv.

